Blow-pipe



(No'Model.)

C. W. DEAN.

BLOW PIPE. Y No. 263.869. Patented Sept. 5, 1882.

iHWBNTOR/ ATTRNEYS.

i UNITED STATES CHARLES w. DEAN, on AUBURNDALE, wiscoNstN.

PATENT OFFICE.

BLOW-PIPE.

SPECIFICATION forming part of vLetters Patent No. 263,869, dated September 5, 1882. Application tiled .Tune 17, 1882. (Norinodcl.)

To all whom it may concern:

Be it known that I, CHARLES W. DEAN, of Auburndale, in the county ot' Wood and State ot' Wisconsin, haveinvented certain new and useful Improvementsin Blow-Pipes; and I do hereby declare that the following is a i'ull, clear, and exact description of the invention, which will enable others skilled inthe art to which it appertains to make and use the same, reference heilig had to the accompanying drawings, which form a part of this speciiication, and in which- Figure 1 is a perspective View of my appa-V ratus. Fig. 2 is a vertical sectional view of the same, and Fig. 3 is a detail View of the ameregulating device.

Similar letters of referencejindicate corresponding parts in all the figures.

My invention has relation to blowpipes which are lparticularly adapted to the use ot' jewelers, silver-smiths, and workers in metals,

. such as gold, silver, brass, and copper; and

it consistsin the construction and arrangement of the apparatus hereinafter more fully described and claimed.

In the accompanying drawings, the letter A represents the reservoir of a lamp adapted to burn alcohol. This lamp has two wick-tubes, (shown at B and 0,) one or both of which may be covered with a cap, when the lamp is not in use, to prevent vaporization of the alcohol.

Upon the top part of the lamp A, around the central wick-tube, C, is swi'veled the lower part, D, of a jacket, which consists of two parts or sections, Dand D', hinged at d. The lower part, D, has twoor more rows or series of `air-holes, a c, to feed the lameinside, which may be regulated by means ot' the regulating attachment. (Illustrated more clearly in Fig. 3 of the drawings.) This attachment consists `of a sleeve, E, thelower end of which ishinged boiler, passes up through thejacket D', and is i closed by a suitable plug orV cork, K. It' the steam-pressure becomes too great, this plug will blow out, tube J thus acting as a safetyvalve.

L is the blow-pipe proper, which enters the boiler near its bottom, but passes up on the iuside to near its top part, which forms the steam-dome. VThe projecting exterior end of this pipe is curved and provided with ane nozzle, l, for the escape ofthe steam-jet. Pipe L is curved in such a manner that by turning the swiveled jacket D D', with its boiler, the nozzle l will be directly opposite to the tlame which is emitted at the mouth ot' the wicktuheB,as shown in Fig.1 ofthe drawings. By turning thejacket to one side or to the other the nozzle may be removed from the ame to stop the jet.

In operation the boiler should be about twothirds full ot' water, so as not to reach the inside top of tube L, through which the steam escapes to form the blow-jet when ,nozzle l is in contact with or juxtaposition to the tlame. The parts D and D should have a suitable device for fastening them together opposite tothe 2. In u blow-pipe apparatus, the combinun testimony that I cluinl the foregoing as tion, with the lamp A, having tbe wick-tube B, of the regulating device consisting of the in presence of two witnesses. sleeve E, bifurcated bellcrank F, having` T 4 5 screw-threaded eye h, provided with the stud CHARLES m DEAN h', slotted bracket G, and screw H, all con- Witnesses: structed and combined substantially as and A. GOETSCHIMS,

for the purpose herein shown and specified. ARTHUR E. DEMING.

my own I have hereunto afxed my signature [o v 

